Outlook 2003

Please help me cause I don't have a clue....
Our office uses Outlook 2003- we have both Japanese & english. When I receive an email from a co-worker the email scrambles & has symbols in place of blanks. We have tried checking the settings on this computer compared to the others and find no difference. I also went in & did a detect & repair but it did not resolve the issues.
Example: shipping Date: QuantityToyo Receiving date:

Low security settings. When I receive the email it shows dots between the words, but when I forward it shows as boxes. I have to have someone else print the emails off for me to read. It is too difficult to decipher